Fucking My Ex Girlfriends Step s****r(True Story) SeXStoRY

This happened during my last year of high school. I had a girlfriend really cute, brown hair, hazel eyes, slim but had curves & about 5 foot 6. We had what we thought was a really good relationship (obviously not because we aren't together now) for about 11 months. Well after about 8 months is when things started really going downhill with us, we argued constantly & the only time we would get along is when we would have sex which was only once or twice a week because i could only see her on the weekends. Well every time I'd go over there it would always be me, her, her parents, her step s****r, & real b*****r & s****r. Usually her parents would be asl**p in their room, her b*****r & s****r would be outside playing, her step s****r would be in her room, & me & her would be in the living room. This one particular evening, me & my girlfriend were laying on the couch watching a movie when we started kissing & feeling up on each other, she proceeded to pull my dick out & began sucking it & only after about 3 mins my phone vibrates from a notification from Facebook. She grabs the phone & sees a girl commented on my picture calling me cute, it pissed her off & even though I had no control over it she starts screaming & hitting at me like it was my fault another girl found me attractive, as we argued my dick was still out & her step s****r peeped around the corner to see what was happening, i looked over & saw her & she quickly went back in her room. After my girlfriend was done yelling she just told me to leave & stormed into her room and locked the door. So I did as she said & zipped my pants back up & proceeded to leave. As i started to leave her step s****r came out & said "wait" in a very low voice so that only i could hear. I stopped & she said "let me go out with you I wanna talk". So we both walked out the door & sat on the steps outside on their back deck. She asked me what happened with me & her s****r so I told her the story & she agreed it was dumb for her to get mad at me over that. We continued to talk & she kept moving over closer to me. You could almost say they were twins if you didn't know any better they had the same body figure, hair & eye color & both had a really soft voice. She put her hand on my leg & said " She's always getting mad at you over things that aren't your fault, you don't deserve that". I replied " I know but what else can I do, its really stressing me out now to". She went from just resting her hand on my leg to rubbing it & told me to find someone else to ease my mind when she got out of hand. I asked her if she had anybody in mind starting to get a slight hard on from her rubbing on my leg for so long & she said, "well I saw your dick out while you were arguing with her & I was impressed & i've never had a black dick before so let me" At first I was really nervous about the idea thinking what if my girlfriend came outside & saw something, I sat still for a moment & didn't say anything so she took matters into her own hands and just un zipped my pants & started jacking off my already halfway erected dick. I felt bad at first but then she began kissing on my neck while she continued to jack me off, then kissing in my ear & whispered "don't worry this can be our little secret" in a REALLY sexy voice, it turned me on so much i looked her in the eyes & we began to kiss, we sucked face for about 3 mins while she still jacked me off & thats when she decided to turn things up & put her face down on my shorts & began to give me a blowjob, it was AMAZING better than anytime her s****r ever blew me, she started off real slow only going about halfway down & up each time & licking my head really soft. She then started to go down deeper & faster, her saliva going all over my dick it was the best feeling in the world.While she continued to blow me I slid my fingers down her spandex shorts & began to finger her really hard, her pussy began to get extremely wet & I was getting ready to cum from her amazing blowjob. She went down all they way & held herself down while licking my balls to. I couldn't hold it in any longer & I came a large amount of nut in the back of her throat.My dick was still hard & she was still really wet, she stood up & pulled her shorts down & pulled her silk pink thong over to the side & sat down really slow on my dick. Her pussy was the tightest pussy I ever had in my life, I felt like my dick wasn't going to fit in for a few seconds, but after a little maneuvering I got it inside & she began to bounce up & down on my dick with her hands over her mouth trying not to let out a loud moan but still moaning at a volume that could be heard. At this point i didn't care if i got caught, this was the BEST pussy I ever had, i picked her up and put her against the wall & began to thrust hard & deep inside her pussy while she ran her hands up my shirt scratching my back and biting down on my neck, we continued to fuck like this for about 10 minutes when we saw a light cut on from the inside of the house, I quickly put her down she put her shorts on, I zipped mine up & jumped off the back deck & ran to my car, luckily it was only her b*****r & s****r coming through the front door so it was nothing to worry about & to this day she still doesn't know what happened. Well that was my first story I ever posted on here I have MANY other stories if anyone is interested, if there's anything i can do to make my story telling better let me know also let me know how i did on this one & if you liked it,& once again this is a TRUE STORY. Until next time folks.........